Envelop.



H. TRENCHARD, JR.

ENVELOP.

APPLICATiON FILED SEPT.24,1915.

1 17 1 ,006, Patented Feb. 8, 1916.

IN VEN T08 HENRY TRENCHARD, JR., OF NEW YORK, N. Y.

ENVELOP.

Specification of Letters Patent.

Patented Feb. 8, 1916;

Application filed September 24, 1915. Serial No. 52,329.

To allvoho-m it may concern:

lie it known that I, Ilnxny THENCHAKD, Jr., a citizen of the United States, residing in the borough of Brooklyn of the city of New York, Kings county, State of New York, have invented an Improvement in Envelops. of which the following description, in connection with the accompanying drawings. is a specification, like letters on the drawings representing like parts.

The present invention relates to improvements in envelops, and more particularly to those in which closure is effected by means of a. flap having a perforation which registers with a perforation in the body of the envelop, the flap being locked in envelopclosing position by means of a tongue pass ing through the erforations.

One. embodime it of my invention is shown in the drawings which accompany this specification, and in which Figure 1 is a rear view of an envelop showing the flap in opcn position, and Fig. 2 is a vertical section showing the flap locked in closed position.

Referring to Fig. 1, envelop 1, provided with a closing flap 2,

having a perforation 3 adapted to register with a perforation 4 in the back of the envelop. 'lo lock the said Ha p in closed position, a tongue 5 may be provided, said tongue in the present illustration, forming an integral extension on the back of the envelop body 1, and being adapted to be inserted through the. registering perforations 3 and 4 in the manner indicated inFig. 2.

The free end of the tongue is reinforced or stiffened so that it may readily be inserted through the slots 3 and 4 without dou bling up or becoming inoperative by reason of its being otherwise deformed. This stiffcning or reinforcing ot' the tongue is accolnplished by altixing thereto or otherwise embodying therein. a longitudinal reinforcing member or stiffener 6. For convenience in inserting the tongue or removing it from tho perforations, a projecting ear 7 may be provided and suitably placed so that it may readily be taken hold of when the tongue is in tlap locking position. in the embodiment illustrated in the drawings, the member 7 is shown as forming the free end of the reinforcing member (3. By thus terminating the inner end of the reinforcing piece at or near I have illustrated an the hinge of the tongue, that is the portion of the tongue where it joins the back, this attaching portion of the tongue 5 is left flexible so that it may readily be bent back or doubled upon itself in the operation of inserting or. removing it.

From the foregoing description, it will be 1. An envelop comprising a body af flp c and a flap locking member h vi g a g portion and a relatively rigid portiorfliithc said body and flap each being provided with a perforation adapted to'receive the. relatively rigid part of the locking member.

2. An envelop comprising a body, a. flap and a hinged flap locking member flexible at the hinged end and relatively rigid toward the free end, said body and flap each being provided with a perforation adapted to en-.

{7 closed position.

3. An envelop comprising a body,.a flap and a flap locking tongue fixed to said body age the locking member to hold the flap in and adapted to cooperate therewith and g with said flap to close the envelop, said tongue being formed of the material of the body and having a reinforced free end,

4. An envelop provided with a flap and a fastening tongue secured to the back of'the envelop, said back and flap having registering openings through'which the tongue may be inserted, and a reinforcing piecesecured to the tongue in such relation as to leave the attaching end of the tongue flexible and to lie in both openings when the tongue is in fastening position.

5. An envelop provided with a flap and fastening tongue secured to the back of the envelop, said back and flap having register ing openings through which the tongue may be inserted, and a reinforcingpiece secured to the tongue to stiffen it. the attaching portion of the tongue being left without reinforcement so as to remain flexible for the purpose described.

6. An envelop pro ided with a flap and a inserted, and a reinforcing piece secured 5 to the tongue to stiffen it, the inner end of said reinforcing piece being bent outwardly tof orm a. projecting ear which leaves a flexible portion of the tongue to act as a hinge and at the same time provides a convenient means of seizure for inserting and withdrmving the tongue.

In testimony whereof, I have signed my name to this specification.

HENRY TRENCHARD, JR. 

